用共振电离质谱测定铀原子奇宇称高激发态能级  

Identification of High-lying Odd Energy Levels of Uranium by Resonant Ionization Mass Spectrometry

作　　者：杜海[1] 史桂珍[1] 黄茂成[1] 金昌泰[1] 

机构地区：[1]中国科学院长春应用化学研究所,长春130022

出　　处：《光谱学与光谱分析》2000年第3期260-264,共5页Spectroscopy and Spectral Analysis

摘　　要：对铀原子单色和双色多光子共振电离光谱开展了深入的研究。报道了用双色三步共振光电离技术测量位于 330 0 3～ 34 2 6 4cm- 1 范围内的奇宇称高激发态能级的位置。利用总角动量选择定则指定了这些能级的总角动量 J值。Single-colour and two-colour multiphoton res on ant ionization spectra of uranium atom were studied extensively with a Nd:YAG la ser-pumped dye laser atomic beam apparatus time-of-flight mass spectrometer i n our laboratory.The energy locations of high-lying odd-parity levels in the r egion 33 003—34 264 cm- -1,mearured by a two-colour three-step ionizati on technique,were reported here.The angular momentum quantum number J was un iquely assigned for these levels by using angular momentum selection rules.

关 键 词：铀原子 共振电离质谱 奇宇称高激发态能级 

分 类 号：O614.62[理学—无机化学] O562.3[理学—化学]